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<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'>In detail mode, the window properties are separated into two
components, the “Glass Type” (listed after all the constructions,
layers and materials in the component tree) and the frame width and conductance
(associated with each window). For LEED, it is best to zero out all the frame
widths and use the window assembly properties in the “Glass Type”
definitions. But be careful, in detail mode you must specify the
GLASS-CONDUCTANCE, which is the U-factor of the window without including air
films. So normally the process would be: obtain NFRC U-factor for the window
assembly (or use ASHRAE values), look up the appropriate GLASS-CONDUCTANCE in
the table in the DOE2 help file (attached), enter this value into the
GLASS-CONDUCTANCE field, finally run the model and check the LV-D report
(scroll down for building summary) to make sure that the U-factors of the
windows are correct.<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:11.0pt;font-family:"Calibri","sans-serif";
color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Kelsey Van Tassel</span><span style='color:#000066'><o:p></o:p></span></b></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Mechanical Engineer | <a href="mailto:kvantassel@sustaineng.com"><span
style='color:blue'>kvantassel@sustaineng.com</span></a></span><span
style='color:#000066'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>608.836.4488 ext. 20 | Fax: 608.836.4477</span><span
style='font-size:10.0pt;font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p>
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<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Sustainable Engineering Group</span><span style='color:#000066'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>901 Deming Way, Suite 201</span><span style='font-size:10.0pt;
font-family:"Arial","sans-serif";color:black'><o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'>Madison, WI 53717<o:p></o:p></span></p>
<p class=MsoNormal><span style='font-size:10.0pt;font-family:"Arial","sans-serif";
color:black'><a href="http://www.sustaineng.com/"><span style='color:blue'>www.sustaineng.com</span></a><o:p></o:p></span></p>
<p class=MsoNormal><span style='color:black'> </span><span
style='color:#000066'><o:p></o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'> equest-users-bounces@lists.onebuilding.org
[mailto:equest-users-bounces@lists.onebuilding.org] <b>On Behalf Of </b>Scott
Meader<br>
<b>Sent:</b> Tuesday, September 28, 2010 9:38 AM<br>
<b>To:</b> equest-users@lists.onebuilding.org<br>
<b>Subject:</b> [Equest-users] Edit Windows Detailed Interface<o:p></o:p></span></p>
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<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal>I have recently inherited the task of finishing an eQuest
model (and I have never used eQuest) that someone else has started for LEED
EAc1. We have received comments form the LEED reviewer, one being:<br>
<br>
1. Windows and skylights for the Proposed Case were modeled with a U-value of
0.32, which does not appear to account for the impact of the window frames on
the whole assembly as required by ASHRAE modeling protocol. Please provide
additional information to confirm that the framed assembly U-value was used, or
revise the model to reflect framed assembly U-values as shown in ASHRAE
90.1-2004 Table A-8.2.<br>
<br>
I have looked through the "Modeling Procedures Quick Reference Guide"
and while it states you can edit or add window types in detailed mode, it skips
over how to edit them. Can anyone give me some direction on how to
proceed?<br>
<br>
Thanks for the help.<br>
<br>
Scott<o:p></o:p></p>
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